Seiko Cal. 6641 - 826

This Hand-Winding model from 1973 features a 44mm Titanium case. Powered by the 6641 caliber with 35j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-86b2a40cab99]

Also known as: Sumo, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

44mm

Case Thickness

11.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

90m

Dial Color

Green

Jewels

35j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1973

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